EP 0070059 A1 19830119 - Method and apparatus for concentrating solutions by means of reverse osmosis.
Title (en)
Method and apparatus for concentrating solutions by means of reverse osmosis.
Title (de)
Verfahren und Vorrichtung zur Konzentrierung von Lösungen durch Umkehrosmose.
Title (fr)
Procédé et dispositif pour concentrer des solutions par osmose inverse.
Publication
Application
Priority
NL 8103299 A 19810710
Abstract (en)
The invention relates to a method and apparatus for concentrating solutions by means of reverse osmosis on the basis of a combination of membrane modules (A) having membranes with high retention, and membrane modules (B) having membranes with limited retention, the minimum number of membrane modules being three. Any membrane module may be replaced by a continuous membrane column. At least one of the membrane modules (A) and (B) should be in the form of a cascade, comprising preferably from two up to and including eight membrane modules.
IPC 1-7
IPC 8 full level
C02F 1/44 (2006.01); B01D 61/02 (2006.01); B01D 61/10 (2006.01); B01D 61/58 (2006.01)
CPC (source: EP US)
B01D 61/026 (2022.08 - EP US)
Citation (search report)
- US 3617550 A 19711102 - ELATA CHAIM, et al
- US B524806 I5 19760302
- US 3836457 A 19740917 - GROSS M, et al
- EP 0029600 A1 19810603 - STILL CARL GMBH CO KG [DE]
- GB 2053024 A 19810204 - DOW CORNING
- [X] PATENTS ABSTRACTS OF JAPAN, vol. 3, no. 147, 5th December 1979, page 55 C 66; & JP - A - 54 124 875 (MITSUI TOATSU K.K.K.) (28-09-1979)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0070059 A1 19830119; EP 0070059 B1 19860129; AT E17658 T1 19860215; DE 3268789 D1 19860313; JP S5867303 A 19830421; NL 8103299 A 19830201
DOCDB simple family (application)
EP 82200800 A 19820629; AT 82200800 T 19820629; DE 3268789 T 19820629; JP 11872882 A 19820709; NL 8103299 A 19810710